Introduction
1.3 Block, core, and functional diagrams
The ARM7TDMI processor architecture, core, and functional diagrams are illustrated
in the following figures:
• Figure 1-2 shows a block diagram of the ARM7TDMI processor components and
major signal paths
• Figure 1-3 on page 1-8 shows the main processor (this is the logic at the core of
the ARM7TDMI
• Figure 1-4 on page 1-9 shows the major signal paths for the ARM7TDMI
processor.
RANGEOUT0
RANGEOUT1
EXTERN1
EXTERN0
nOPC
nRW
MAS[1:0]
nTRANS
nMREQ
A[31:0]
D[31:0]
DIN[31:0]
DOUT[31:0]
ARM DDI 0029G
EmbeddedICE
Logic
Scan chain 0
ARM7TDMI
main
processor
logic
All other
signals
SCREG[3:0]
TAP controller
IR[3:0]
TAPSM[3:0]
TCK
TMS
nTRST
TDI
TDO
Figure 1-2 ARM7TDMI processor block diagram
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